- 专利标题： METHOD AND DEVICE FOR OBTAINING A SECOND IMAGE FROM A FIRST IMAGE WHEN THE DYNAMIC RANGE OF THE LUMINANCE OF SAID FIRST IMAGE IS GREATER THAN THE DYNAMIC RANGE OF THE LUMINANCE OF SAID SECOND IMAGE
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申请号： EP18202489.3申请日： 2018-10-25
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公开(公告)号： EP3477947A1公开(公告)日： 2019-05-01
- 发明人: LE NAOUR, Robin , TOUZE, David , SERRE, Catherine
- 申请人： Interdigital VC Holdings, Inc
- 申请人地址： 1209 Orange Street Wilmington, DE 19801 US
- 专利权人： Interdigital VC Holdings, Inc
- 当前专利权人： Interdigital VC Holdings, Inc
- 当前专利权人地址： 1209 Orange Street Wilmington, DE 19801 US
- 代理机构： Labelle, Lilian
- 优先权： EP17306493 20171031
- 主分类号： H04N19/00
- IPC分类号： H04N19/00
摘要：
The present principles relate to a method and device for obtaining a second image from a first image when the dynamic range of the luminance of said first image is greater than the dynamic range of the luminance of said second image. The method comprises:
- deriving at least one component representative of the colors of said second image from said first image; and
- maximizing (step 12) at least one derived component (c2 and/or c3) according to a maximum value (MAX) depending on a linear-light luminance component (L) of the first image.
- deriving at least one component representative of the colors of said second image from said first image; and
- maximizing (step 12) at least one derived component (c2 and/or c3) according to a maximum value (MAX) depending on a linear-light luminance component (L) of the first image.
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